./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_string_eq_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_string_eq_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8b61e347701f0c89420e753e852eb314cc29dd4fd4a4715a05b300c448d0ac03 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 02:27:12,968 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 02:27:13,032 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-19 02:27:13,038 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 02:27:13,041 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 02:27:13,068 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 02:27:13,069 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 02:27:13,070 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 02:27:13,070 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 02:27:13,070 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 02:27:13,071 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 02:27:13,071 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 02:27:13,072 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 02:27:13,072 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 02:27:13,073 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 02:27:13,073 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 02:27:13,073 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 02:27:13,074 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 02:27:13,074 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 02:27:13,074 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 02:27:13,075 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 02:27:13,078 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 02:27:13,078 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 02:27:13,079 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 02:27:13,079 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 02:27:13,079 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 02:27:13,079 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 02:27:13,080 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 02:27:13,080 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 02:27:13,080 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 02:27:13,080 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 02:27:13,081 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 02:27:13,081 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 02:27:13,081 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 02:27:13,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 02:27:13,082 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 02:27:13,082 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 02:27:13,086 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 02:27:13,086 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 02:27:13,086 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8b61e347701f0c89420e753e852eb314cc29dd4fd4a4715a05b300c448d0ac03 [2024-11-19 02:27:13,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 02:27:13,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 02:27:13,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 02:27:13,362 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 02:27:13,362 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 02:27:13,363 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_eq_harness.i [2024-11-19 02:27:14,762 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 02:27:15,182 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 02:27:15,183 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_harness.i [2024-11-19 02:27:15,225 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a16168fd0/dc5a6a645bdf4564b065338943eb6f91/FLAGa5519ba08 [2024-11-19 02:27:15,242 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a16168fd0/dc5a6a645bdf4564b065338943eb6f91 [2024-11-19 02:27:15,246 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 02:27:15,248 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 02:27:15,249 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 02:27:15,249 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 02:27:15,254 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 02:27:15,256 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:27:15" (1/1) ... [2024-11-19 02:27:15,257 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64dad301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:15, skipping insertion in model container [2024-11-19 02:27:15,258 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:27:15" (1/1) ... [2024-11-19 02:27:15,415 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 02:27:15,697 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_harness.i[4487,4500] [2024-11-19 02:27:15,707 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_harness.i[4547,4560] [2024-11-19 02:27:16,427 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:27:16,427 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:27:16,428 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:27:16,428 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:27:16,429 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:27:16,444 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:27:16,445 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:27:16,447 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:27:16,447 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:27:17,036 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:27:17,038 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:27:17,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 02:27:17,128 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 02:27:17,143 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_harness.i[4487,4500] [2024-11-19 02:27:17,144 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_harness.i[4547,4560] [2024-11-19 02:27:17,232 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:27:17,233 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:27:17,233 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:27:17,233 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:27:17,234 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:27:17,270 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:27:17,271 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:27:17,272 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:27:17,272 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:27:17,392 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8588] [2024-11-19 02:27:17,394 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:27:17,395 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:27:17,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 02:27:17,599 INFO L204 MainTranslator]: Completed translation [2024-11-19 02:27:17,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:17 WrapperNode [2024-11-19 02:27:17,601 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 02:27:17,602 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 02:27:17,602 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 02:27:17,602 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 02:27:17,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:17" (1/1) ... [2024-11-19 02:27:17,783 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:17" (1/1) ... [2024-11-19 02:27:17,852 INFO L138 Inliner]: procedures = 670, calls = 2271, calls flagged for inlining = 58, calls inlined = 6, statements flattened = 389 [2024-11-19 02:27:17,852 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 02:27:17,853 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 02:27:17,853 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 02:27:17,853 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 02:27:17,863 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:17" (1/1) ... [2024-11-19 02:27:17,864 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:17" (1/1) ... [2024-11-19 02:27:17,873 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:17" (1/1) ... [2024-11-19 02:27:17,910 INFO L175 MemorySlicer]: Split 277 memory accesses to 4 slices as follows [2, 257, 13, 5]. 93 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 0, 0, 5]. The 260 writes are split as follows [0, 257, 3, 0]. [2024-11-19 02:27:17,910 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:17" (1/1) ... [2024-11-19 02:27:17,911 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:17" (1/1) ... [2024-11-19 02:27:17,940 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:17" (1/1) ... [2024-11-19 02:27:17,946 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:17" (1/1) ... [2024-11-19 02:27:17,953 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:17" (1/1) ... [2024-11-19 02:27:17,962 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:17" (1/1) ... [2024-11-19 02:27:17,969 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 02:27:17,972 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 02:27:17,972 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 02:27:17,973 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 02:27:17,973 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:17" (1/1) ... [2024-11-19 02:27:17,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 02:27:17,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:27:18,014 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 02:27:18,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 02:27:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2024-11-19 02:27:18,065 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2024-11-19 02:27:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2024-11-19 02:27:18,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2024-11-19 02:27:18,067 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-19 02:27:18,067 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-19 02:27:18,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-19 02:27:18,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-19 02:27:18,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-19 02:27:18,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-19 02:27:18,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 02:27:18,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 02:27:18,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 02:27:18,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 02:27:18,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-19 02:27:18,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-19 02:27:18,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 02:27:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 02:27:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 02:27:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 02:27:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 02:27:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 02:27:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 02:27:18,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 02:27:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-19 02:27:18,070 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-19 02:27:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 02:27:18,071 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 02:27:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2024-11-19 02:27:18,071 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2024-11-19 02:27:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-19 02:27:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-19 02:27:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-19 02:27:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-19 02:27:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-19 02:27:18,072 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-19 02:27:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-19 02:27:18,072 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-19 02:27:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 02:27:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 02:27:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 02:27:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 02:27:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 02:27:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 02:27:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 02:27:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 02:27:18,334 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 02:27:18,336 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 02:27:25,208 INFO L? ?]: Removed 73 outVars from TransFormulas that were not future-live. [2024-11-19 02:27:25,208 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 02:27:25,222 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 02:27:25,223 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 02:27:25,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:27:25 BoogieIcfgContainer [2024-11-19 02:27:25,224 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 02:27:25,226 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 02:27:25,227 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 02:27:25,229 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 02:27:25,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:27:15" (1/3) ... [2024-11-19 02:27:25,230 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@145eedb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:27:25, skipping insertion in model container [2024-11-19 02:27:25,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:17" (2/3) ... [2024-11-19 02:27:25,231 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@145eedb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:27:25, skipping insertion in model container [2024-11-19 02:27:25,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:27:25" (3/3) ... [2024-11-19 02:27:25,233 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_eq_harness.i [2024-11-19 02:27:25,248 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 02:27:25,248 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 02:27:25,328 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 02:27:25,336 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3d646685, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 02:27:25,337 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 02:27:25,341 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 65 states have (on average 1.2461538461538462) internal successors, (81), 66 states have internal predecessors, (81), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-19 02:27:25,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-19 02:27:25,352 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:27:25,353 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:27:25,354 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:27:25,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:27:25,358 INFO L85 PathProgramCache]: Analyzing trace with hash 54912304, now seen corresponding path program 1 times [2024-11-19 02:27:25,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:27:25,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611386917] [2024-11-19 02:27:25,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:27:25,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:28:15,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:28:16,391 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 02:28:16,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:28:16,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611386917] [2024-11-19 02:28:16,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611386917] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:28:16,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362836083] [2024-11-19 02:28:16,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:28:16,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:28:16,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:28:16,396 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 02:28:16,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process